:root {
  --bg: #060d1a;
  --panel: rgba(13, 24, 44, 0.88);
  --panel-border: rgba(120, 170, 255, 0.18);
  --text: #e8f0ff;
  --text-dim: #93a7c8;
  --accent: #4da3ff;
  --accent-2: #ffc14d;
  --good: #4ade80;
  --bad: #f87171;
  --radius: 16px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

#globe-canvas {
  position: fixed;
  inset: 0;
  display: block;
  cursor: grab;
}
#globe-canvas:active { cursor: grabbing; }
#globe-canvas.picking { cursor: crosshair; }

.screen {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  z-index: 10;
}
.screen.hidden { display: none; }

.panel {
  pointer-events: auto;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 28px 32px;
  backdrop-filter: blur(14px);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.55);
  max-width: min(640px, 92vw);
  max-height: 92vh;
  overflow-y: auto;
  text-align: center;
}

/* ── Home ─────────────────────────────────────────────── */
.logo {
  font-size: 2.6rem;
  letter-spacing: -1px;
  font-weight: 800;
}
.logo span { color: var(--accent); }
.tagline { color: var(--text-dim); margin: 6px 0 22px; }

.mode-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 20px;
}
.mode-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-items: flex-start;
  text-align: left;
  padding: 14px 16px;
  background: rgba(40, 70, 120, 0.25);
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  color: var(--text);
  cursor: pointer;
  transition: transform 0.12s ease, background 0.12s ease, border-color 0.12s ease;
}
.mode-card:hover {
  transform: translateY(-2px);
  background: rgba(60, 100, 170, 0.35);
  border-color: var(--accent);
}
.mode-icon { font-size: 1.5rem; }
.mode-name { font-weight: 700; font-size: 1.05rem; }
.mode-desc { color: var(--text-dim); font-size: 0.8rem; }
.mode-card.done { opacity: 0.55; }
.mode-card.done .mode-desc::after { content: ' · played today ✓'; color: var(--good); }

.options-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  margin-bottom: 18px;
}
.option-group label {
  display: block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-dim);
  margin-bottom: 6px;
}
.seg {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 4px;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 999px;
  padding: 4px;
}
.seg button {
  border: none;
  background: transparent;
  color: var(--text-dim);
  padding: 6px 14px;
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.85rem;
  transition: background 0.1s, color 0.1s;
}
.seg button.active {
  background: var(--accent);
  color: #06182e;
  font-weight: 700;
}

.stats-row {
  display: flex;
  justify-content: center;
  gap: 22px;
  flex-wrap: wrap;
  padding: 12px 0 4px;
  border-top: 1px solid var(--panel-border);
}
.stat b { display: block; font-size: 1.25rem; color: var(--accent); }
.stat span { font-size: 0.72rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 1px; }
.foot { margin-top: 14px; font-size: 0.72rem; color: var(--text-dim); }

/* ── HUD ──────────────────────────────────────────────── */
#screen-game { align-items: stretch; justify-content: stretch; flex-direction: column; }

.hud-top {
  pointer-events: auto;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 16px 20px;
  gap: 12px;
}
.hud-left, .hud-right { display: flex; gap: 8px; align-items: center; min-width: 130px; }
.hud-right { justify-content: flex-end; }

.hud-chip {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 999px;
  padding: 7px 14px;
  font-size: 0.85rem;
  font-weight: 600;
  white-space: nowrap;
}
.hud-chip.score { color: var(--accent-2); }
.hud-chip.streak { color: #ff9b54; }
.hud-chip.timer { color: var(--good); min-width: 74px; text-align: center; }
.hud-chip.timer.low { color: var(--bad); animation: blink 1s infinite; }
@keyframes blink { 50% { opacity: 0.45; } }

.ghost-btn {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  color: var(--text-dim);
  border-radius: 999px;
  width: 34px;
  height: 34px;
  cursor: pointer;
  font-size: 0.9rem;
}
.ghost-btn:hover { color: var(--text); border-color: var(--accent); }

.hud-target {
  flex: 1;
  text-align: center;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 12px 22px;
  max-width: 520px;
}
.hud-target h2 { font-size: 1.7rem; letter-spacing: -0.5px; }
.cat-chip {
  display: inline-block;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--accent);
  margin-bottom: 2px;
}
.hint-chip {
  display: inline-block;
  margin-top: 6px;
  font-size: 0.8rem;
  color: var(--accent-2);
  background: rgba(255, 193, 77, 0.12);
  border: 1px solid rgba(255, 193, 77, 0.35);
  padding: 3px 12px;
  border-radius: 999px;
}

.hud-bottom {
  pointer-events: auto;
  margin-top: auto;
  display: flex;
  justify-content: center;
  gap: 12px;
  padding: 22px;
}

.pill-btn {
  border: none;
  border-radius: 999px;
  padding: 13px 30px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.1s, filter 0.1s;
}
.pill-btn:hover:not(:disabled) { transform: translateY(-1px); filter: brightness(1.1); }
.pill-btn.primary {
  background: linear-gradient(135deg, #3b8eea, #2563b8);
  color: #fff;
  box-shadow: 0 8px 26px rgba(59, 142, 234, 0.4);
}
.pill-btn.primary:disabled {
  background: rgba(80, 100, 130, 0.4);
  color: var(--text-dim);
  cursor: default;
  box-shadow: none;
}
.pill-btn.secondary {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  color: var(--text);
}
.pill-btn.secondary:disabled { opacity: 0.45; cursor: default; }

/* ── Result / End ─────────────────────────────────────── */
#screen-result { align-items: flex-end; justify-content: center; }
.result-panel { margin-bottom: 26px; min-width: min(440px, 90vw); }
.result-panel h3 { font-size: 1.45rem; margin-bottom: 4px; }
.result-panel p { color: var(--text-dim); }
.result-panel .points { font-size: 1.6rem; font-weight: 800; color: var(--accent-2); margin: 10px 0 14px; }

.distance-bar {
  height: 8px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.4);
  margin-top: 12px;
  overflow: hidden;
}
#distance-fill {
  height: 100%;
  width: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--good), var(--accent-2), var(--bad));
  transition: width 0.8s ease;
}

.end-panel h2 { font-size: 1.9rem; margin-bottom: 6px; }
.end-panel > p { color: var(--text-dim); margin-bottom: 16px; }
.end-rounds {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 18px;
  max-height: 38vh;
  overflow-y: auto;
  text-align: left;
}
.end-round {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  font-size: 0.88rem;
  background: rgba(0, 0, 0, 0.25);
  padding: 8px 14px;
  border-radius: 10px;
}
.end-round .er-name { font-weight: 600; }
.end-round .er-dist { color: var(--text-dim); }
.end-round .er-pts { color: var(--accent-2); font-weight: 700; }
.end-actions { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

.cert-panel { max-width: min(880px, 94vw); }
#cert-img {
  width: 100%;
  border-radius: 10px;
  margin-bottom: 14px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

/* ── Loading ──────────────────────────────────────────── */
.loading {
  position: fixed;
  inset: 0;
  z-index: 50;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  transition: opacity 0.4s;
}
.loading.fade { opacity: 0; pointer-events: none; }
.spinner {
  width: 44px;
  height: 44px;
  border: 3px solid rgba(120, 170, 255, 0.2);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

@media (max-width: 640px) {
  .mode-grid { grid-template-columns: 1fr; }
  .hud-target h2 { font-size: 1.2rem; }
  .hud-left, .hud-right { min-width: auto; }
  .hud-top { flex-wrap: wrap; }
  .panel { padding: 20px; }
}